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Which two scenarios are NOT safe to replace a StringBuffer object with a String Builder object? (Choose two.) A. When using versions of Java technology

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Which two scenarios are NOT safe to replace a StringBuffer object with a String Builder object? (Choose two.) A. When using versions of Java technology earlier than 5.0. B. When sharing a StringBuffer among multiple threads. C. When using the java.io class String BufferinputStream. D. When you plan to reuse the String Buffer to build more than one string

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